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Diffstat (limited to 'src/Data/Array/Nested')
-rw-r--r-- | src/Data/Array/Nested/Convert.hs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Data/Array/Nested/Convert.hs b/src/Data/Array/Nested/Convert.hs index cea2489..d07bab9 100644 --- a/src/Data/Array/Nested/Convert.hs +++ b/src/Data/Array/Nested/Convert.hs @@ -3,6 +3,7 @@ {-# LANGUAGE PolyKinds #-} {-# LANGUAGE RankNTypes #-} {-# LANGUAGE ScopedTypeVariables #-} +{-# LANGUAGE StandaloneDeriving #-} {-# LANGUAGE TypeAbstractions #-} {-# LANGUAGE TypeApplications #-} {-# LANGUAGE TypeOperators #-} @@ -150,6 +151,7 @@ data Castable a b where => Castable (Mixed sh a, Mixed sh b) (Mixed sh (a, b)) CastUnzip :: (Elt a, Elt b) => Castable (Mixed sh (a, b)) (Mixed sh a, Mixed sh b) +deriving instance Show (Castable a b) instance Category Castable where id = CastId |